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Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc.


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Old 08-30-2010, 08:07 PM
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Default Broken Water Pump Impeller

A guy I ride with was having weird overheating problems.
When we saw coolant in the trans oil I know it was time to tear it down, and as stated the impeller was split in half.
He did order a aluminum one to replace the plastic one.
I don't see an advantage to using a plastic one except cost savings, if you want to build a better bike their are some areas that you just don't cut corners.
I just wanted to post this so it may help others with over heating issues.

The good news is we also did a top end (same time) at 127 hours and everything looked great except the reeds were chipped at the edges.
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Old 08-31-2010, 05:23 AM
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I have a 08 and I was wondering if gasgas is still using plastic impellars with the newer bikes ?
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Old 08-31-2010, 06:10 AM
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As far as I know - GasGas no longer uses a phenolic (plastic-like) impeller - it is alloy. I believe the '08 would have the newer impeller.

jeff
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Old 08-31-2010, 07:47 AM
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I would check, there was a period in time when anything was possible. Some pre '07 bikes had alloy impellers and my '07 to my surprise had a plastic one.
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Old 08-31-2010, 09:45 AM
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Quote:
Originally Posted by webmaster View Post
As far as I know - GasGas no longer uses a phenolic (plastic-like) impeller - it is alloy. I believe the '08 would have the newer impeller.

jeff

This is an 09, so I'd check your bike to make sure
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Old 08-31-2010, 10:45 AM
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Wow , THey really are all over the place with stuff aren't they.

Is there a gasket that I'll need to have on hand to replace or is it a reusable oring?
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Old 08-31-2010, 09:41 PM
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Quote:
Originally Posted by biggstr6 View Post
Wow , THey really are all over the place with stuff aren't they.

Is there a gasket that I'll need to have on hand to replace or is it a reusable oring?
It's a gasket
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